package web.Filter;

import pojo.User;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

/**
 * @author fire'ge
 */
@WebFilter("/checkServlet")
public class LoginFilter implements Filter {

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;
        User user = (User) httpServletRequest.getSession().getAttribute("user");

        final int rightNum = 2;
        if (user.getRight() < rightNum){
            httpServletRequest.setAttribute("msg","你的权限不足");
            httpServletRequest
                    .getRequestDispatcher("/jsp/msg.jsp")
                    .forward(servletRequest,servletResponse);
        }
        else {

            filterChain.doFilter(servletRequest,servletResponse);
        }
    }

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }
    @Override
    public void destroy() {

    }
}
